BUMP!!!
Daniweb is still top on Google!
And this topic is the 3rd atm for this search: http://www.google.hu/search?q=universal+mouse+driver
It would be a shame if there would be no answer!
(As you can see I'm still searching.)

On my computer when I plug in the USB, the mouse is recognized and the HID mouse drivers are automatically installed by XP.

If there is still a problem, I would disable the driversin the device manager and reboot the computer. The XP should then find the driver and install it automatically.

That's the problem exactly: The XP driver is... well... retarded, but it's enough for the manufacturers to not give any driver at all. Earlier that 5 buttons was not usual so I had to set up things like backspace or dblclick onto them. But now a HID mouse can have more buttons and I can't set anything else onto them. Softwares either support them directly or not. Fx. Firefox uses those buttons for forward and backward, I never ever use them. And they don't have any function at all in Wincmd, or in Netbeans any more. So I just would like to set them up what to do like with my old mouse.
Thanks for the answer anyway!

Try this one. It worked pretty well for me. It still failed to remap a generic useless button for me, though.
http://www.highrez.co.uk/downloads/XMouseButtonControl.htm

Hi,
RAPOO (Chinese brand, Google it) has a driver that will probably help, it works for me for 3 different types. It downloads as ce_jian.rar and has one problem that is not really a problem, the download comes in Chinese, however all that is required to open it is to simply press ENTER on all questions or choices and the result is in English.

Ooh! well check these setting
go to control panel -mouse setting- remove the check of double click